Pile cutting device for CFG pile

Abstract

The utility model relates to the technical field of building foundation engineering, in particular to a CFG pile cutting device which comprises a vertical mounting plate. The vertical mounting plate is connected to an excavator bucket through a connecting arm, and an annular cutting mechanism is arranged in the middle of the vertical mounting plate; the top and the bottom of the vertical mounting plate are fixedly connected with a driving frame, a clamping driving motor is arranged in the driving frame in a connected mode, a driving rod is mounted at the output end of the clamping driving motor through a coupler, and a clamping positioning mechanism is arranged at the top end of the driving rod. By arranging the annular cutting mechanism and the clamping and positioning mechanism, circular motion cutting with the axis of the CFG pile as the circle center is achieved, and it can be guaranteed that the cutting face is uniform and flat; cutting force is evenly distributed around the CFG pile through circular motion cutting, local overheating and cutting stress are reduced, and the risk of pile body damage is reduced; and the clamped and locked CFG pile is not prone to moving in the cutting process, the safety risk of operators is reduced, and the actual use requirement is met.

Description

Technical Field

[0001] This utility model relates to the field of building foundation engineering technology, specifically to a device for cutting CFG piles. Background Technology

[0002] The existing Chinese patent document CN217839994U discloses a CFG pile cutting device. It proposes an infrared positioning device installed directly above the main frame, with two connecting shafts running from top to bottom through one end of a mechanical claw to ensure normal rotation. The mechanical claw is connected to a hydraulic rod, and a rubber strip is embedded inside the claw. A transverse connecting shaft is located in the middle of the main frame, running from left to right through a first rubber roller. A motor support is connected to the left and right sides of the front of the main frame via connecting shafts, with a motor mounted on each support. A second rubber roller is connected to the motor, and the motor support is connected to a hydraulic rod. At the bottom of the main frame, both left and right connecting shafts run from top to bottom through an arc-shaped component and a cutter. The cutter is arc-shaped, with a serrated track on the arc-shaped component. The serrated track matches a chain, with a saw blade on the chain. The chain is driven by a second motor. Both the arc-shaped component and the cutter are connected to hydraulic rods. The device has a simple structure, enabling non-destructive movement between the device and the pile, avoiding damage to the foundation and improving the efficiency of pile cutting operations.

[0003] When performing pile cutting operations on CFG piles, the above-mentioned solutions and existing technologies are prone to accidents for operators due to the unstable fixing of CFG piles and the large vibration of cutting equipment. Traditional cutting methods cannot guarantee the flatness and perpendicularity of the cutting surface, resulting in uneven quality of the pile cross-section, which affects the safety and stability of the engineering structure and cannot meet the actual use requirements.

[0004] Therefore, this utility model proposes a CFG pile cutting device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a CFG pile cutting device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a CFG pile cutting device, comprising a vertical mounting plate;

[0007] The vertical mounting plate is connected to the excavator bucket via a connecting arm. A ring-cutting mechanism is provided in the middle of the vertical mounting plate to perform ring-cutting of the CFG pile.

[0008] The top and bottom of the vertical mounting plate are fixedly connected to the drive frame by fixing bolts. A clamping drive motor is connected to the inner side wall of the drive frame. The output end of the clamping drive motor passes through the drive frame and extends to the outside of the drive frame. A drive rod is fixedly installed at the output end of the clamping drive motor through a coupling. A clamping positioning mechanism is provided at the top of the drive rod.

[0009] Preferably, the circumferential cutting mechanism includes a balance fixing plate mounted on the surface of a vertical mounting plate, a fixing half-ring fixedly mounted on the top of the balance fixing plate, a limit plug block fixedly mounted on one end of the fixing half-ring, a connecting seat fixedly mounted on the top of the balance fixing plate, an adjusting motor connected to one side surface of the connecting seat, an adjusting shaft fixedly mounted on the output end of the adjusting motor via a coupling, and the central arc surface of the adjusting shaft rotatably connected to the balance fixing plate via a bearing.

[0010] Preferably, both ends of the adjusting shaft are fixedly mounted with adjusting half-rings, and the adjusting half-rings and the fixed half-rings form a ring. A plug hole is provided on one side of the adjusting half-ring, and the inner wall of the plug hole is slidably plugged into the surface of the limiting plug block.

[0011] Preferably, a semi-gear ring is fixedly installed on the top of both the fixed semi-ring and the adjusting semi-ring, and the two semi-gear rings form an annular gear ring with their ends in corresponding contact. A semi-arc-shaped slide rail is fixedly installed on the arc surface of both the fixed semi-ring and the adjusting semi-ring, and the two semi-arc-shaped slide rails form an annular slide rail with their ends in corresponding contact. An arc-shaped slider is slidably inserted into the surface of each of the two semi-arc-shaped slide rails. A ring-shaped drive motor is connected to the top end of the arc-shaped slider, and a drive shaft is fixedly installed at the output end of the ring-shaped drive motor via a coupling. A drive gear is fixedly installed at one end of the drive shaft, and the teeth of the drive gear mesh with the tooth grooves of the semi-gear ring. A cutting motor is fixedly installed at the other top end of the arc-shaped slider, and a cutting shaft is fixedly installed at the output end of the cutting motor via a coupling. A cutting blade is connected to the bottom end of the cutting shaft.

[0012] Preferably, the clamping and positioning mechanism includes an adjusting block threaded to the arc surface of the drive rod, and a compression half-ring is fixedly installed at the top of the drive rod, and the compression half-ring is pressed against the arc surface of the CFG pile body. The top and bottom ends of the adjusting block are rotatably connected to the first connecting rod through pins.

[0013] Preferably, an adjustment groove is provided at the top and bottom of one end of the drive frame, and an auxiliary sliding rod is slidably inserted into the inner wall of the adjustment groove at the top and the corresponding section groove at the bottom of the drive frame, and the top and bottom of the auxiliary sliding rod are rotatably connected to a second connecting rod through bearings.

[0014] Preferably, one end of each pair of first connecting rods is rotatably connected to an auxiliary clamping plate via a pin, and the top and bottom ends of the pins on one side of the auxiliary clamping plate are respectively fixedly installed to one end of the two second connecting rods. The other end of the auxiliary clamping plate is rotatably connected to a transition plate via a set pin, and a limiting half-ring is fixedly installed at one end of the transition plate. The two limiting half-rings are symmetrically arranged, and the inner walls of the two limiting half-rings are pressed against the arc surface of the CFG pile body.

[0015] Preferably, one end of the fixing bolt is fixedly provided with a cross knob, and both the vertical mounting plate and the drive frame are fixedly provided with fixing grooves, and the fixing grooves are fixedly provided with positioning grooves. Two sets of positioning blocks are evenly arranged in the fixing grooves, and the outer side wall of the positioning blocks is connected with positioning protrusions, which are adapted to and connected with the positioning grooves. The inner side wall of the positioning blocks is provided with threaded grooves, which are threadedly connected to the fixing bolts.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] By setting up a circumferential cutting mechanism and a clamping and positioning mechanism, circular motion cutting with the axis of the CFG pile as the center is achieved, which ensures that the cutting surface is uniform and flat, improving the cutting accuracy and quality. Circumferential motion cutting makes the cutting force evenly distributed around the CFG pile, reducing local overheating and cutting stress, and reducing the risk of pile damage. The circumferential cutting operation can be carried out continuously, reducing the time for stoppage and adjustment, and improving the efficiency of pile cutting. After clamping and locking, the CFG pile is not easy to move during the cutting process, reducing the safety risks to operators and meeting the actual use requirements. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the CFG pile cutting device of this utility model;

[0019] Figure 2 This is a schematic diagram of the clamping and positioning mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the drive frame structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the ring-cutting mechanism of this utility model;

[0022] Figure 5 This is a schematic diagram of the drive frame and vertical mounting plate structure of this utility model.

[0023] Figure 6 This is a schematic diagram of the fixing bolt structure of this utility model.

[0024] In the diagram: Vertical mounting plate 1, circumferential cutting mechanism 2, balance fixing plate 21, fixing half ring 22, limit plug-in block 23, connecting seat 24, adjusting motor 25, adjusting shaft 26, adjusting half ring 27, plug-in hole 28, half gear ring 29, semi-arc slide rail 210, arc slider 211, ring drive motor 212, drive shaft 213, drive gear 214, cutting motor 215, cutting shaft 216, cutting blade 217, drive frame 3, mounting plate 4. Clamp drive motor; 5. Drive rod; 6. Clamping and positioning mechanism; 61. Adjusting block; 62. Extrusion half ring; 63. First connecting rod; 64. Adjusting slide groove; 65. Auxiliary sliding rod; 66. Second connecting rod; 67. Auxiliary clamping plate; 68. Adapter plate; 69. Limiting half ring; 7. CFG pile body; 8. Fixing bolt; 801. Cross knob; 802. Fixing groove; 803. Positioning groove; 804. Positioning block; 805. Positioning protrusion; 806. Positioning washer; 807. Threaded groove. Detailed Implementation

[0025] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] Please see Figures 1 to 6 This utility model provides three technical solutions for a CFG pile cutting device:

[0027] Example 1: A CFG pile cutting device, comprising a vertical mounting plate 1;

[0028] The vertical mounting plate 1 is connected to the excavator bucket via a connecting arm. A ring cutting mechanism 2 is provided in the middle of the vertical mounting plate 1. The ring cutting mechanism 2 performs ring cutting on the CFG pile.

[0029] The top and bottom of the vertical mounting plate 1 are fixedly connected to the drive frame 3 by fixing bolts 8. The drive frame 3 connected by fixing bolts 8 can be installed and disassembled. The inner side wall of the drive frame 3 is connected to a clamping drive motor 4. The output end of the clamping drive motor 4 passes through the drive frame 3 and extends to the outside of the drive frame 3. The output end of the clamping drive motor 4 is fixedly installed with a drive rod 5 through a coupling. The top of the drive rod 5 is provided with a clamping positioning mechanism 6. The clamping positioning mechanism 6 realizes the CFG pile positioning and clamping action.

[0030] Example 2: Based on Example 1, the ring cutting mechanism 2 includes a balance fixing plate 21 installed on the surface of the vertical mounting plate 1, and a fixing half ring 22 is fixedly installed at the top of the balance fixing plate 21. A limit plug block 23 is fixedly installed at one end of the fixing half ring 22. A connecting seat 24 is fixedly provided at the top of the balance fixing plate 21. An adjusting motor 25 is connected to one side surface of the connecting seat 24. An adjusting shaft 26 is fixedly installed at the output end of the adjusting motor 25 through a coupling. The central arc surface of the adjusting shaft 26 is rotatably connected to the balance fixing plate 21 through a bearing.

[0031] Adjustment half-rings 27 are fixedly installed on the arc surfaces at both ends of the adjustment shaft 26, and the adjustment half-rings 27 and the fixed half-rings 22 form a ring. A plug hole 28 is provided on one side of the adjustment half-rings 27, and the inner wall of the plug hole 28 is slidably plugged into the surface of the limiting plug block 23.

[0032] Both the top of the fixed half-ring 22 and the top of the adjusting half-ring 27 are fixedly mounted with semi-gear rings 29, and the two semi-gear rings 29 form annular gear rings, with their ends in corresponding contact. Both the arc surfaces of the fixed half-ring 22 and the arc surfaces of the adjusting half-ring 27 are fixedly mounted with semi-arc-shaped slide rails 210, and the two semi-arc-shaped slide rails 210 form annular slide rails, with their ends in corresponding contact. Arc-shaped sliders 211 are slidably inserted into the surfaces of both semi-arc-shaped slide rails 210. A ring drive motor 212 is connected to one end of the top of the device, and a drive shaft 213 is fixedly installed at the output end of the ring drive motor 212 via a coupling. A drive gear 214 is fixedly installed at one end of the drive shaft 213, and the teeth of the drive gear 214 mesh with the tooth groove of the half gear ring 29. A cutting motor 215 is fixedly installed at the other end of the top of the arc-shaped slider 211, and a cutting shaft 216 is fixedly installed at the output end of the cutting motor 215 via a coupling. A cutting blade 217 is connected to the bottom end of the cutting shaft 216.

[0033] Example 3: Based on Example 2, the clamping and positioning mechanism 6 includes an adjusting block 61 threadedly connected to the arc surface of the drive rod 5, and a compression half-ring 62 is fixedly installed at the top of the drive rod 5. The compression half-ring 62 is pressed against the arc surface of the CFG pile body 7. The top and bottom ends of the adjusting block 61 are rotatably connected to the first connecting rod 63 through pins.

[0034] The top and bottom of one end of the drive frame 3 are provided with adjustment grooves 64, and the inner walls of the adjustment groove 64 at the top and the corresponding section groove 64 at the bottom of the drive frame 3 are slidably inserted with auxiliary sliding rods 65, and the top and bottom ends of the auxiliary sliding rods 65 are rotatably connected to the second connecting rods 66 through bearings.

[0035] One end of each pair of first connecting rods 63 is rotatably connected to an auxiliary clamping plate 67 via a pin. The top and bottom ends of the pins on one side of the auxiliary clamping plate 67 are respectively fixedly installed to one end of each of the two second connecting rods 66. The other end of the auxiliary clamping plate 67 is rotatably connected to a transition plate 68 via a pin. One end of the transition plate 68 is fixedly installed with a limiting half-ring 69. The two limiting half-rings 69 are symmetrically arranged, and the inner walls of the two limiting half-rings 69 are pressed against the arc surface of the CFG pile body 7.

[0036] A cross knob 801 is fixedly provided at one end of the fixing bolt 8, and fixing grooves 802 are fixedly provided on both the vertical mounting plate 1 and the drive frame 3. The fixing grooves 802 are adapted to and connected with the positioning blocks 804, and positioning grooves 804 are fixedly provided in the fixing grooves 802. Two sets of positioning blocks 804 are evenly arranged in the fixing grooves 802, and positioning protrusions 805 are connected to the outer side wall of the positioning blocks 804. The positioning protrusions 805 are adapted to and connected with the positioning grooves 803. The positioning protrusions 805 are used to position the vertical mounting plate 1 and the drive frame 3. The inner side wall of the positioning blocks 804 is provided with threaded grooves 807, and the threaded grooves 807 are threadedly connected to the fixing bolt 8.

[0037] In use, after the vertical mounting plate 1 is connected to the excavator bucket via the connecting arm, the clamping drive motor 4 connected to the inner wall of the drive frame 3 drives the drive rod 5 to move. The drive rod 5 drives the adjusting block 61 to move, so that the compression semi-ring 62 at the end of the adjusting block 61 fits against the outer wall of the CFG pile body 7. Under the movement of the adjusting block 61, the first connecting rod 63 and the second connecting rod 66 connected by the pin shaft drive the limiting semi-ring 69 inside the auxiliary clamping plate 67 to clamp the outer wall of the CFG pile body 7, thus completing the clamping of the CFG pile body 7. The clamping and positioning are achieved; the drive gear 214 at the end of the drive shaft 213 of the cutting motor 215 meshes with the half gear ring 29. Under the drive of 212, the drive gear 214 and the half gear ring 29 move. The cutting motor 215 drives the cutting blade 217 at the bottom of the arc-shaped slider 211 to cut the CFG pile body 7. The cutting method is suitable for CFG piles of different diameters and heights. Only the position of the clamping mechanism and the cutting device needs to be adjusted. It not only achieves efficient and precise cutting, but also improves the safety and economy of the operation.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pile cutting device for CFG piles, characterized in that: Includes vertical mounting plate (1); The vertical mounting plate (1) is connected to the excavator bucket via a connecting arm. A ring cutting mechanism (2) is provided in the middle of the vertical mounting plate (1). The ring cutting mechanism (2) performs ring cutting on the CFG pile. The top and bottom of the vertical mounting plate (1) are fixedly connected to the drive frame (3) by the fixing bolts (8). The inner side wall of the drive frame (3) is connected to the clamping drive motor (4). The output end of the clamping drive motor (4) passes through the drive frame (3) and extends to the outside of the drive frame (3). The output end of the clamping drive motor (4) is fixedly installed with the drive rod (5) by the coupling. The top of the drive rod (5) is provided with a clamping positioning mechanism (6).

2. The CFG pile cutting device according to claim 1, characterized in that: The ring cutting mechanism (2) includes a balance fixing plate (21) installed on the surface of the vertical mounting plate (1), and a fixing half ring (22) is fixedly installed at the top of the balance fixing plate (21), and a limit plug block (23) is fixedly installed at one end of the fixing half ring (22). A connecting seat (24) is fixedly provided at the top of the balance fixing plate (21), and an adjusting motor (25) is connected to one side surface of the connecting seat (24). An adjusting shaft (26) is fixedly installed at the output end of the adjusting motor (25) through a coupling, and the middle arc surface of the adjusting shaft (26) is rotatably connected to the balance fixing plate (21) through a bearing.

3. The CFG pile cutting device according to claim 2, characterized in that: The two ends of the adjusting shaft (26) are fixedly mounted with adjusting half rings (27), and the adjusting half rings (27) and the fixed half rings (22) form a ring. A plug hole (28) is opened on one side of the adjusting half ring (27), and the inner wall of the plug hole (28) is slidably plugged into the surface of the limiting plug block (23).

4. A pile cutting device for CFG piles according to claim 3, characterized in that: Half-tooth rings (29) are fixedly installed on the top of both the fixed half-ring (22) and the adjusting half-ring (27), and the two half-tooth rings (29) form an annular toothed ring, with their ends in corresponding contact. Semi-arc slide rails (210) are fixedly installed on the arc surfaces of both the fixed half-ring (22) and the adjusting half-ring (27), and the two semi-arc slide rails (210) form an annular slide rail, with their ends in corresponding contact. Arc-shaped sliders (211) are slidably inserted into the surfaces of both semi-arc slide rails (210). A ring drive motor (212) is connected to one end of the top of the arc-shaped slider (211), and a drive shaft (213) is fixedly installed at the output end of the ring drive motor (212) through a coupling. A drive gear (214) is fixedly installed at one end of the drive shaft (213), and the teeth of the drive gear (214) mesh with the tooth groove of the half gear ring (29). A cutting motor (215) is fixedly installed at the other end of the top of the arc-shaped slider (211), and a cutting shaft (216) is fixedly installed at the output end of the cutting motor (215) through a coupling. A cutting blade (217) is connected to the bottom end of the cutting shaft (216).

5. A pile cutting device for CFG piles according to claim 1, characterized in that: The clamping and positioning mechanism (6) includes an adjusting block (61) threadedly connected to the arc surface of the drive rod (5), and a compression half ring (62) is fixedly installed at the top of the drive rod (5). The compression half ring (62) and the arc surface of the CFG pile body (7) are pressed against each other. The top and bottom of both ends of the adjusting block (61) are rotatably connected to the first connecting rod (63) through the pin shaft.

6. A pile cutting device for CFG piles according to claim 1, characterized in that: The top and bottom of one end of the drive frame (3) are provided with adjustment grooves (64), and the inner walls of the adjustment groove (64) at the top and the corresponding section groove (64) at the bottom of the drive frame (3) are slidably connected with auxiliary sliding rods (65), and the top and bottom ends of the auxiliary sliding rods (65) are rotatably connected with second connecting rods (66) through bearings.

7. A pile cutting device for CFG piles according to claim 5, characterized in that: One end of each pair of first connecting rods (63) is rotatably connected to an auxiliary clamping plate (67) via a pin. The top and bottom ends of the pins on one side of the auxiliary clamping plate (67) are fixedly installed to one end of each of the two second connecting rods (66). The other end of the auxiliary clamping plate (67) is rotatably connected to a transition plate (68) via a set pin. One end of the transition plate (68) is fixedly installed with a limiting half ring (69). The two limiting half rings (69) are symmetrically arranged, and the inner walls of the two limiting half rings (69) are pressed against the arc surface of the CFG pile body (7).

8. A pile cutting device for CFG piles according to claim 1, characterized in that: One end of the fixing bolt (8) is fixedly provided with a cross knob (801), and both the vertical mounting plate (1) and the drive frame (3) are fixedly provided with fixing grooves (802), and a positioning groove (803) is fixedly provided in the fixing groove (802). Two sets of positioning blocks (804) are evenly arranged in the fixing groove (802), and a positioning protrusion (805) is connected to the outer side wall of the positioning block (804). The positioning protrusion (805) is adapted to the positioning groove (803) and is connected to it. The inner side wall of the positioning block (804) is provided with a threaded groove (807), and the threaded groove (807) is threadedly connected to the fixing bolt (8).

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